Edexcel GCSE Maths November 2018 1H Exam Paper Walkthrough

[@kay_ko]

Wallah question 21 had me flabbergasted I have never seen such a difficult question in my life

[@not...not...no.643]

same wAllah

[@musicstockerx]

question 21 is the type of question which u can get wrong even if u have a mark scheme with u

[@_2tired4this_64]

Literally gonna cry. My exam is tmr

[@hamzah7]

@@_2tired4this_64 how did you do?

[@Niazi.Fitness]

Question 21 is the most confusing thing I've come across and I still don't understand it

[@edded2487]

bruv ive been struggling on that for ages legit thought im retarded

[@retro_xx2469]

@WrOx43 how

[@anassz]

@WrOx43 tell pls

[@dwcLDN]

@WrOx43 been 8 months, thanks for telling us

[@hannaht2771]

@WrOx43 it’s been 9 months, you gonna tell us?

[@hollycutland6612]

Question 22 is never ending!!

[@priya200328]

On Q11 (33:22) How would you know to double the price then times it by 4?

[@ibibam1237]

You're trying to find a percentage, in order to do that, you have to make the fraction out of 100. For example, 1/1.25 is the same as 1/1.25 --(x2)--> 2/2.5 --(x2)--> 4/5 --(x2)--> 8/10 --(x10)--> 80/100. Hence, you get 80%, which is what the question asked for instead of 1/1.25. But equally, they're the same value.

[@-jaan6943]

just to get a denominator that can times into 100

[@ScxytheFPS]

@@ibibam1237 wow you are smart

[@priya200328]

On Q14 b I don't understand what you are doing (41:34), how did you get 3^1/2? Also what are those types of questions called?

[@samgarwood5081]

I know it's probably a lot later now, but (x)^1/2 is equal to sqrt(x)

[@priya200328]

On Q4 (8:20) I don't understand why you multiply 5 on both sides, because to get 1 I divided on both sides instead and then I timesed 3 on both sides to get 3 taps. And could you tell me what topic that question comes under please

[@memetris6971]

Very common mistake, This is called “Inverse proportion in context” And you should revise it, also think logically: How could it be faster for 1 tap to fill up a tank, obviously if you use 3 then it will be much faster, not slower

[@fuzehup6406]

Call me wrong but the explanations are kind of jumpy.. Like for one of the questions I didn't understand and you just went "and then we multiply it by 2 and then we multiply by 4 and here is the answer" and I'm so confused wtf happened and why it happened

[@mose-rtz]

@31:10 what topic is this

[@romant6018]

But didn’t understand the transformations one. How did you get -1/3

[@jedmaths1152]

When they are on opposite sides of the centre of enlargement, the scale factor becomes negative.

[@alexbailey5321]

Thank you very much. Your videos are absolutely fantastic

[@alexbailey5321]

1:00:30

[@TheOnlyMilad]

nice pfp

[@thebarrybrown49]

1:02:44 AB=-a+b why?

[@kou.v]

to get from A to B you go from A to O then O to B. since the direction of A to O is against the direction given, a becomes negative, -a. O to B is given. therefore AB = -a (A to O) + b (O to B)

[@priya200328]

On Q16 (46:38) What do you mean you have 2 things ending 56, how are you meant to know you have to take 10 away?

[@kyleraghvani5070]

Times it by 100 if u find it hard. Then do 100x-1x so 100xthe original-the original. So the new number is 99x. New number over 99, is the fraction. Then simply from there

[@ishaq4579]

question 14 what if you cant square root the denominator

[@themoyoman4754]

Question 1-20: 😊Question 21+:☠💀

[@priya200328]

On Q15 (43:29) Why do you square root for length?

[@memetris6971]

To work out the area scale factor you normally square the length, so we do the inverse to find out the length when we are given the area

[@milkiiiteaa]

this paper COOKED me lmao

[@Samira-oi1gx]

You don’t really explain wat u do in the questions u just say wat ur doing which isn’t helpful

[@ishaq4579]

how do you find out the exact value of a tan like how you did you know it was 1

[@memetris6971]

Exact trig

[@sohnelbains3102]

you need to learn exact trigonometry values ask your teacher

[@darknessrising5068]

Another way is sin divided by cos. So if it is tan 45, it is basically sin 45 divided by cos 45. Same goes with other values like 30,60,90 and 0.

[@fuzehup6406]

44:53 Why do you x3 and times by x5 It don't make sense why to me

[@belikebob8539]

If you look at the ratios of the lengths, it is A:B and B:C, you want to get it into a ratio where it is A:B:C so that all three can be compared. To do this, he will make B the same value in each ratio. A:B is 2:5 and B:C is 3:4. To make B the same in both, you multiply both to get them to their lowest common multiple (LCM). The LCM of 5 and 3 is 15, hence why he multiplied 5 by 3 in the first ratio, and 3 by 5 in the second. This results in the final ratio being 6:15:20 which is A:B:C. I’ve tried to explain this as simply as possible so I hope it helps :) If you’re still stuck, let me know which part you don’t understand.

[@priya200328]

On Q20 (58:41) How did you get (4 root 2)^2 Where did the 3 go?

[@priya200328]

Nvm I got that

[@kirangill1909]

how did he get that? can you please explain

[@priya200328]

@@kirangill1909 Basically Root2 has a 1 infront so when you add it to 3root2 it becomes 4root2 . Because they both have the same root you can add them together

[@kirangill1909]

@@priya200328 thank you so much

[@helalahmed235]

please make vodeo about the 2019 results

[@wt4261]

For question 10a what if I don’t put the 1 on top ,is it right or wrong

[@Gamper1]

its wrong

[@josmatujuanz6439]

if anyone knows how to understand what the question is asking u pleaseeee help me

[@itiskwanzatime9047]

1:05:12 why multiply?

[@sethumuthaiah1363]

how is number 19 a two mark question

[@soph3874]

For Q8, can you also use the Sine rule ?

[@Ilikesaucytoes]

I m not sure but I would just stick with cos because it gives you cos of 60 degrees which helps you get the answer

[@Gamper1]

no

[@Yusuf-tp1xy]

Stupid ass

[@angelaibuki4003]

On question 20 how did you manage use literally 2 numbers and make it so complicated? What is the topic question for it please

[@Gamper1]

surds

[@amberbadman5134]

SO I'm probably missing something but how do you get 1.25 in question 11 because there is no 1.25 in the question and 25% = 0.25, I'm extremely confused

[@emmiewright4095]

1.25 is 25% added onto the original amount because it is 25% more.

[@Gamper1]

because adding 25% more is the same as finding 25% of the original, then adding it to the original, and since 25%=25/100=0.25 it is 0.25x+x which equals 1.25x

[@Khemani_RL]

Q21 is making my brain sore 🤯

[@not...not...no.643]

enne

[@abdulrahmannassar9601]

What is the topic for Q7) ?

[@crustyaf1s]

for the last question x could be 28 right?

[@rhys9201]

thanks mate for free leassons

[@DP-tk2yz]

14:02 how is it -1y-15y when its a +1y ... so confused

[@shah-mo5gd]

2 minus makes a positive

[@kyleraghvani5070]

1 - - 15 is 1 + 15

[@ayeomer05]

what is the topic called for question 19?

[@ar67335]

functions

[@aishalala7]

Omg this was so helpful

[@ginacc7]

omg I loove ur profile pic it put an Aro through my heart xxxx

[@ibrahimhussain74]

how do you know that in q7 its a quater of a circle

[@ibrahimhussain74]

for the area of the quater circle, why did u multiply by 20 (diameter) and not 10 (radius)?

[@belikebob8539]

@@ibrahimhussain74 the centre of the quarter circle is point B, it’s stated in the question. That’s how you know that the 20cm is the radius, since the line is extending from the circumference (point A) to the centre (point B). That’s as best as I can explain it, hope it helps.

[@helalahmed235]

Give me your brain i give u my phone

[@musicstockerx]

how is a to n linked to a to p

[@Gamper1]

you can get A to N by multiplying A to P by a constant (something thing 2/3 or 6/5), represented by k

[@hprivate9114]

Question 21 is beyond me ;/

[@Josh-ht8qw]

Same

[@xxUniqueflowersxx]

what topic is question number 8

[@mathsgenie7808]

Trigonometry: Exact trig ratios and SOHCAHTOA

[@trevorakinola7870]

I hate maths great video though jheez

[@cashmoneyat7776]

Most is straight forward but u got a few questions where ur like bruv who is going to think of this in an exam 😭

[@not...not...no.643]

got like halfway thru q21

[@twilightera-t4b]

hes from the discrod servre

[@musicstockerx]

imagine if i get this paper for my December mocks...

[@kyleraghvani5070]

Did u. I have mine in Jan. What did u get??

[@abihashakeel6262]

MusicStockerX I didn't get this one

[@abihashakeel6262]

MusicStockerX so hopefully you do

[@musicstockerx]

@@kyleraghvani5070 i got the 2019 paper 1, 2018 paper 2, n 2017 paper 3 😂

[@-jaan6943]

clear video

[@sholongoli7394]

yea

[@mozhdasatarzai6759]

question 22 is hella long

[@s4intsvfx]

but it is worth the 6 marks

[@KAMO99]

i hate this paper

[@priya200328]

If you don't respond to my questions I won't recommend your video's to anyone as they are not helpful...

[@7jason]

Lmao go ask ur teacher

[@priya200328]

@@7jason I'm never gonna go back to school coz I've finished my gcse so now it's my summer holiday

[@hugostevenson7426]

Dude's got a full time job, he might not have time.

[@priya200328]

@@hugostevenson7426 I thought his job was to help people and he also gets paid through KZbin

[@hugostevenson7426]

@@priya200328 His job is to help people - as a teacher. But given he started a channel, which makes very little, I'd imagine he's quite caring and wants to help others. Try not to be so self absorbed.